| Harrisville Central School District, NY (District) |
| Harrisville School District, NH (District) |
| Harrold ISD, TX (District) |
| Harrold School District, SD (District) |
| Hart County, KY (Phantom) |
| Hart County, GA (ISD) |
| Hart County, GA (District) |
| Hart County Schools, KY (District) |
| Hart ISD, TX (District) |
| Hart Public School District, MI (District) |
| Hart ROP, CA (District) |
| Hart-Ransom Union Elementary, CA (District) |
| Hart'S Location School District, NH (District) |
| Hartford Central School District, NY (District) |
| Hartford County, CT (ISD) |
